#!/bin/sh

if [ "$4" != "sub" ]
then
 if [ x"$4" != x ]
 then
	echo "ERROR: in parameters"
	exit 10
 fi
echo "(C) PIF 2000"
echo "Change permissions for subdirectories"
echo " "
fi

dirmode=$1
filemode=$2
dirpath=$3

if [ "$4" != "sub" ]
then
if [ x"$dirpath" == x ]
then
echo "This program will change access mode for directories and files recursively"
echo "Usage: chsub dirmode filemode dir"
echo "       dirmode  - directory mode"
echo "       filemode - file mode"
echo "       dir      - the name of the directory or file"
echo " "
echo "Example: chsub /tmp 755 644"
exit 0
fi
fi

if [ $# -le 2 ]
then
echo "ERROR: in parameters"
echo "Type chsub for help"
exit 1
fi

if [ -e "$dirpath" ]
then
 chmod $dirmode "$dirpath"
else
 echo "ERROR: $dirpath does not exists!"
 exit 11
fi

if [ $? -ne 0 ]
then
echo "ERROR: in chmod"
exit 2
fi
for i in `ls -1a "$dirpath"`
do
if [ "$i" != "." ]
then
#Skip file "."
 if [ "$i" != ".." ]
 then
#Skip file ".."
	if [ -d "$dirpath/$i" ]
	then
#If $dirpath/$i is a directory
	 echo "Directory $dirpath/$i"
	 chmod "$dirmode" "$dirpath/$i" >/dev/null 2>&1
	 $0 "$dirpath/$i" "$dirmode" "$filemode" sub
	else
#if $dirpath/$i is not a directory
	 echo "   File $dirpath/$i"
	 chmod "$filemode" "$dirpath/$i" >/dev/null 2>&1
	fi
		
 fi
fi

done